Concealed bed construction



4 Sheets-Sheet 1 Filed Oct. 18. 1950 {iwemaw 631922 52- Edward July 20,1954 HIRST 2,683,883

CONCEALED BED CONSTRUCTION Filed Oct. 18, 1950 4 Sheets-Sheet 2 y 1954E. G. HlRST CONCEALED BED CONSTRUCTION 4 Sheets-Sheet 4 Filed Oct. 18.1950 Patented July 2, 1954 TED STAT' rsm' OFFICE 11 Claims.

Introduction The present invention relates to improvements in aconcealed bed construction. This application. is a continuationin-pa1'tof application Serial No. 673,556, filed May 31, 1946, which is nowabandoned.

Concealed beds of the type to which the inven tion relates consistessentially of a collapsible bed which, when not in use, may be foldedand concealed within a receptacle. The present invention aims to providean improved construction of a bed. of this nature wherein the bed andreceptacle form a single unit which is easily transported and may beeasily moved from one location to another. The present combined bed andreceptacle unit is simple both in design and operation and eliminatesthe use of counterweights counterbala-ncing springs making the unitcompact and especially adaptable for use in apartments, hotels, cottagesor other places where floor space is a problem. The compact folding ofthe bed into the receptacle also allows the unit to become an attractivepiece of furniture as well as an article of utility making it adaptablefor use as an occasional bed in offices, plants, or other places wherean ordinary bed or couch would be impractical. The construction of theunit is such that it may be placed against the wall of room or in arecess so as to occupy the minimum of door space.

Accordingly, the present invention is embodied concealed bedconstruction comprising in nation with a receptacle, a bed frame te theends on the free ends of links pivoted hin opposite ends of threceptacle. The of the side of the bed frame adiacent whereby the bedframe can be links to avertical position within or to a horizontalextended posie bed in osition for use *tside of eceptacle. The linka ebet een the bed .rne receptacle is such that the swin in'r Increment canbe readily accomplished without the use of counterbalancing weights orthe like.

One of the features of the present unit is that the bed frame isprovided with collapsible head and footboards that are operated bylinkage through the movement of the bed frame about the central pivot.

A further feature consists in providing collapsible legs pivoted to theside of the bed frame remote from the receptacle that are operated bylinkage associated with the links supporting the bed frame so as tocollapse and extend with the 4 closing and opening movement of the bedrespectively.

A still further feature is embodied in the pre-.

ferred construction of the receptacle which includes a pair ofsubstantially centrally divided doors that ar mounted in the receptacleso as to fold down vertically beneath the bed frame when the bed isopened and fold up vertically to close ed the front of the receptaclewhen the bed is in concealed folded position within the receptacle.Linkage is provided between the doors and the bed supporting linkage sothat the doors are held up in a partially open position until the bedframe has been unfolded and also raises th doors to a partially closedposition when the bed is swung into the receptacle. This ensures thatthe doors can not fall or fold over the feet of anyone unfolding orfolding the bed as well as eliminating the necessity of having to stoopand pull the door up from the floor when the receptacle is being closed.

Having thus generally described the nature of the invention particularreference will be made to ferred construction of a concealed bed unitconstruoted in accordance with the present invenion. and in which:

Figure 1 is a front view in perspective elevation of a concealed bedunit constructed in accordance with the invention.

Figure 2 is a sectional view of Figure 1 the line 2-2.

Figure 3 is a front view in perspective elevat onv of the constructionshown in Figure 1 with. the frame in open position.

Figure 4 is a front View of a portion of the onstruction shown in Figure3, with the bed frame in the closed position and the doors of thereceptacle open.

Figure 5 is a sectional view along the line 5-5.

Figure 6 is an end view of the construction along shown in Figure 1 withthe end of the receptacle.

6 along theline 1-'! to illustrate the constructionin more detail.

' Figure 81s an end view corresponding to Figure 6 with the end of thereceptacle removed to' in plan of Figure 4' illustrate the relativepositions of bed frame, linkage and receptacle doors when the bed isopened.

Figure 9 is a sectional view of Figure 8 along the line 99 illustratingthe head and foot rail locking arrangement in more detail.

Figur 10 is an enlarged detail view of the head and foot rail catch toillustrate the preferred construction more clearly.

Figure 11 is a sectional view of Figure 8 along the line ll-l l toillustrate the folding arrangement and operating linkage for thcollapsible head and footboards.

Figure 12 is a sectional View corresponding to Figure 11 showing thecollapsible headboard in the folded position.

Figure 13 is an enlarged detail view of the slid ing pivotal connectionbetween the headboard operating arm and the main supporting link.

Figure 14 is a diagrammatic view of the bed frame supporting linkage,receptacle door supporting and opening arm, and the associated safetyclosure cam arm as it appears in the folded position within thereceptacle.

Figure 15 is a diagrammatic view corresponding to Figure 14 with thereceptacle doors partially opened.

Figure 16 is a diagrammatic view corresponding to Figure 15 with thereceptacle doors completely open and the bed frame completely opened.

Figure 1'7 is a diagrammatic view corresponding to Figure 16 with thebed frame partially closed within the receptacle to illustrate theinitial door opening action of the door supporting lever arm.

Figure 18 is an enlarged detail view of one of the door supporting andopening lever arms.

With particular reference to Figures 1 and 2 of the drawings, apreferred construction of a concealed bed unit in accordance with thepresent invention is illustrated as comprising a substantiallyrectangular receptacle or cabinet .10 containing the collapsible bed andassociated mechanism.

The receptacle I!) is made up of a steel inner frame [2 over which ismounted the cabinet structure proper consisting of a top panel I l, sidepanels 16, and a back panel l8 which are joined and supported at thecorners by rear posts 26 and front posts 22. The panels and posts can bemade of any suitable material, forexample, wood, or plywood and arepreferably assembled so that the receptacle may be easily taken down, ifnecessary, in moving or to facilitate the entry of the unit through asmall doorway or window.

The front wall of the receptacle is made up of a two-piece door dividedinto hinged panels 24. 28 which open outwardly at the central hingingpoint indicated at 28 and fold vertically downwards. The top door panel24 includes rollers 30 at each side adjacent the upper edge which areengaged with and ride in slotted grooves 32 provided in each of thefront receptacle posts 22. The top panel 24 is hingedly mounted on thetop of the lower panel 26 by means of suitable spring hinges 21, seeFigure 2, and the lower panel 26 is mounted on a lower frame member I3of the inner frame 12 by means of hinges 34. As is shown in Figure 14, afiller block I is secured to the inner face of the frame member [3 andthe hinges 3d are secured to the filler block. With this arrangement thedoor panels 24, 26, when pulled outwardly by the handle 35 attached tothe panel 24, fold outwardly and descend vertically with the travel ofthe upper edge of the panel 24 guided by the engagement of the rollers30 in the grooves 32 of the posts 22. The particular hinging arrangementof the bottom panel 26 to the frame member 13 provides a clearance spacefor the toes of anyone opening the doors. Means associated with thelinkage of the bed supporting mechanism is adapted to support thepartially folded doors clear of the floor before the bed is opened, asis shown in Figure 17, and will be described in more detail later.

Bed frame and linkage The bed frame of the unit consists essentially oflongitudinal side members 40, 4| and end members 42, 43 forming arectangular bed frame on which there are supported springs 44.

The longitudinal side member 41 adjacent the receptacle when the bed isopened is connected to the end frame members 42, 43 by means of castings45 at each end of the frame. The castings 65 also serve as supports andbearin s for the axles of a pair of roller guide wheels 41 which arethus rotatably mounted on the end frame members 42, 53 (see Figure 7).

The bed frame is mounted for swinging pivotal movement into and out ofthe receptacle ID by means of a pair of main supporting links 58. Oneend of each of the links 50 is pivotally connected by means of suitablebrackets 5| to a lower frame member of the inner frame [2 at each sideof the receptacle. The links 50 are also pivotally connected adjacentthe other ends to the end bed frame members 42, 43 intermediate the endsof these members so that the bed frame is adapted to pivot about alongitudinal axis. A pair of flanged members 5?, 59 are secured to theframe members I I and ll of the inner frame l2 at each end of thereceptacle with their flanges opposed to form a guide track 6! The guidewheels 41 mounted on the bed frame are adapted to travel on the flangesof the members 51, 59 in the guide track 60 so that the inner edge ofthe bed frame relative to the receptacle is guided in a vertical andpartially arcuate path when the frame is pivoted about the supportinglinks 5!].

A side mattress board 10 is mounted on the longitudinal side member 48and a headboard having a lower portion 12 and an upper portion H, and afootboard having a lower portion 14 and an upper portion 13 are securedto the mattress board H3 and the end frame members, 43 at opposite endsof the frame so as to form the easement of the bed adapted to retain themattress in position. The upper portions H, 13 of the headboard and thefootboard are hinged to the lower portions 12, I4 so that they may befolded inwardly when the bed is folded so as to automatically lock themattress and bed clothing in position as the bed is swung into theclosed or concealed position.

With reference to the folding of the upper head and footboard portionsH, 13, the following description deals specifically with the headboardportions 12, H but it will be understood that the footboard portions l4;l3 operate in a similar manner. Referring particularly to Figures 11, 12and 13 of the drawings, the upper headboard portion I! is hingedlymounted on the lower portion '12 as indicated at 15 so that it can befolded inwardly only.

A sliding link is pivotally connected at one end to the main supportinglink 50, see Figure 13, so that the movement of the link 50 istransmitted to the link 80 when the bed frame is swung into or out ofconcealed positioned. A spring 8| is provided to take up any slack inthe movement. The link 86' is supported for slidable movement on thelower headboard portion 12 by means of a bracket 84, and is pivotallyconnected to a hinged link 85 mounted on the upper headboard portion H.A slide plate 88 is provided on the headboard portion 72 beneath thepivotal connection between the links 3E, 85. With this arrangement theoutward swingi of the bed frame moves the link 5Q so as to push the link83 upwards so as to unfold the headboard portion ll (see Figure 11). Theinward movement of the bed frame moves the link 59 in the oppositedirection so as to pull the link 88 downwards folding the headboardportion ll inwards (see Figure 12).

In order to safeguard against the possibility of the headboard portions"H i2 and foot-board portions i3, is being folded accidentally when thebed is opened, say for example, by someone leaning or sitting on thebed, safety catches iii! are provided that automatically retain theheadboard portions in the erected position and release them when the bedis closed. The safety catches 98 are positioned at each end of thereceptacle Iii and are pivotally mounted on the vertical innerfrarnemembers I! as is shown in Figure 9. Each of the catches so arepreferably formed so as to have a concave shape in generalcross-section, see ure 10, so as to minimize the actual bearing surfacecoming into contact with the bearing plates 94 mounted on the headboardportions ii, and footboard portions E3.

The catches are each actuated through rods 95 which arc pivotallyconnected to and extend between each catch iii] and one end of leverarms 98 which are pivotally mounted on diagonal sup porting members 19of the inner frame 52 at each end of the receptacle. A spring it? isprovided between each of the catches 9t and end of each of the rods asso as to give the locking movement resiliency. The other end of each ofthe lever arms 98 are adapted to be contacted by the roller guide wheelsat the end of their upward and outward travel when the bed is opened sothat the connecting rods 5F, are pulled downwards bringing the catchesas into engagement with the upper edges of the head and footbcards. Aspring 5263 is provided on each of the catches so so that release of theconnecting rods Qt by the closing of the bed cause the catches 5G toswing upwards and away from the head and foot-boards and allows them tofold as previously described.

A pair of supporting legs :82 are pivotally mounted, one on each of theend bed frame inenn bers '22, t3 adjacent the longitudinal side framemember ii. These legs .22 are automatically swung down and refolded byconnecting links 522 that are pivotally connected to the legs and themain supporting links 5%]. The pivotal connections between the legs Hi2and the side frame members 42, ii are off centre relative to the centreline of the legs the pivotal con nections between the legs i632, and thelinks i2? are also on center so as to eliminate any possi-- bility ofthe linkage sticking when the legs are folded parallel to the si-..eframe members when the bed is closed.

The upper and lower door panels 2 1, are prevented from foldingcompletely down p- -r to the unfolding of the bed frame by means of apair of spaced apart door supporting lever arms I33. Each of the leverarms 5 are pivotally mounted at one end to the bed frame end bers 22 andt3 and are prevented from tel no loosely by means of lengths of chainit? secured to the lever arms 53d and the respective end members 42, ea.As is shown in detailrin Figures 14, l5, l6, l7 and 18 the supportinglever arms ltd iii) tion 2 and into the receptacle i=3, as is showoperate in the following .manner. When the doors, 24, 26 are opened, thelever arms fall against the lower door portion 28, between the portion26 and the upper portion E l. As the doors are lowered, the lever arms13% descend to the limit of the chains l32 and thus the folded doorportions are supported in a sufliciently low position to allow the bedto be opened but also sufiiciently high relative to the floor so as toprovide clearance for the feet of the person opening the bed. When thebed frame is swung about the supporting links 50 to open the bed theupward movement of the inner end of the bed frame members 52, 43, lowersand withdraws the supporting arms 138 so that the doors 2t, 25, foldflatly against the floor as is shown in Figure 16. Conversely, when thebed is again swung about the links 50 to close the bed into thereceptacle the lever arms I30 again raise the folded doors 2 26, intothe intermediate position so they may be easily raised into their fullextended closed position. It has been found, that due to the resilienthinging between the door portions 2t, 26, and the present lever armarrangement that very little effort is required to raise or lower thedoors 24, 26, and that no locking mechanism is necessary to secure thedoors in the closed position.

In order to ensure that the door portions 26, 25, do descend when thebed is opened, a pair of safety cam arms I 16 are provide: follow theupper edge of the door portion as it descends but do not contact thedoor unless the door sticks. These cams l lil are pivot-ally mounted ateach end of the bed frame to main supporting links 55 are shaped so thathis inner free ends of the travel between the axles mounting the guidewheels 3! protruding studs Hi2 one of which is secured to each of theend bed frames 52, 43. The outer ends of the cams 40 adjacent the doorsprovided with a rubber roller i 44. With this arrangement, the swingingmovement of the frame about the links 5! as well as the I01 A anddownward movement of the links actuates the cam rollers 4 into anarcuate path. The arcuate path extends outwardly over the t p edge ofthe door portion 2% and then downward following the travel of the doorit lowered by the action of the lever arms 53%. When bed is closed thereverse movement of the bed frame and the supporting links actuate thesafety cam arms Mt upwardly in an arcuate so as to move them away fromthe top door per- Figure 14.

In use, when the bed i to be opened, the handle 35 is pulled outwardlycausing the door portions Ed, 25, to fold out the top edge of the door25 slots in the front posts When doors are lowered sufficiently to allowfor the opening of the bed the lever arms see are supporting theirweight and will continue to do so until the bed is opened. To open thebed is adj the upper edge and pulled outwardly. This action cause thebed frame to swing about its pivotal connection with the supportinglinks 55 and simultaneously causes the to pivot outwardly from theconnection with the receptacle frame l2. Since the inner edge of the bedis restrained and guided by the engagement of the guide .wheels 67 withthe track-iii the inner edge of the frame :moves upwardly and outwardlyas the-bed. pivots gand swings bodily to .thelhorizontal position.Simultaneously with this swinging motion of the bed frame, the head Itand footboard portions '53 are unfolded by the linkage 80, 86, and thelegs I02 are unfolded into their supporting position by the links I22.The doors 24, 25, are completely lowered tin'ough the actions of thelever arms [36 and the headboard portion H and the footboard portion islocked in erected position by the retaining catches 9B.

To close the bed, the lifting of the outer edge of the bed frame pivotsthe frame about the links 50 and the associated linkage folds up thelegs and head and footboards so that the bed is folded compactly withinthe recept cle 18. As the doors 24, 26, have already been lifted by thelever arms I30 to the partially closed position, an upward pull on thehandle 35 raises them to the point where the resilient hinges act tobring the door portions into vertical alignment and complete thereceptacle closure.

I claim:

1. In a foldaway bed construction, a receptacle having an open front, asupporting frame within said receptacle, a rectangular bed frame havinglongitudinal side frame members connected by transverse end framemembers, a guideway mounted on said supporting frame adjacent each endof said receptacle, a guide member carried by one end of each said bedframe end member slidably engaging said guideways, said bed frame beingpivotally connected to said supporting frame by means of a pair ofspaced apart elongated supporting links having their lower endspivotally connected to said supporting frame adjacent said guideways andbeing pivotally connected adjacent their upper ends to said transversebed frame end members beyond the centres of said members with respect tosaid guide members so as to constitute a pivotal axis extendinglongitudinally of said bed frame, whereby said bed frame is adapted tobe swung about said longitudinal pivotal axis from a position withinsaid receptacle wherein the bed frame is in parallel vertical alignmentwith said receptacle to a horizontal position exteriorly of saidreceptacle, the travel of the inner bed frame members adjacent saidreceptacle being guided by said guideways in a vertical upward andarcuate outward path when said bed frame is swung about said pivotalaxis so as to extend said bed frame from said receptacle and in anarcuate inward and vertical downward path when said bed frame is swunginto said receptacle.

2. In a foldaway bed construction, a receptacle having an open front, abed frame having longitudinal side members connected by transverse endframe members, guideways arranged adjacent each end of said receptacle,guide members carried by one end of said bed frame end members slidablyengaging in said guideways, said bed frame being pivotally connectedthereto by means of a pair of spaced apart supporting links having theirlower ends pivotally connected to said receptacle and being pivotallyconnected adjacent their upper ends to said transverse bed frame endmembers beyond the center of said members relative to said guide membersso as to constitute a pivotal axis extending longitudinally of said bedframe, supporting legs pivoted at their upper ends to the ends of saidtransverse bed frame end members remote from said guide members,connecting links having one end pivotally connected to each of said legsand the other end to each of said supporting links whereby said bedframe is 8 adapted to be swung about said longitudinal pivotal axis froma vertical position within said casing to a horizontal extendedposition, the travel of the longitudinal bed frame member adjacent saidguide members being guided by said connection with said guideways, saidlinkage between said pivotal legs and said supporting links effectingthe movement of said legs between the collapsed and extended position assaid frame is swung from a vertical to a horizontal position.

3. In a foldaway bed construction, a receptacle having an open front, abed frame having longitudinal side frame members connected by transverseend members, said bed frame being pivotally connected to said receptacleby means of a pair of spaced apart supporting links having their lowerends pivotally connected to said receptacle adjacent the base thereofand being pivotally connected adjacent their upper ends to saidtransverse frame end members so as to constitute a pivotal axisextending longitudinally of said bed frame, guideways arranged in saidreceptacle adjacent each end thereof, guide members carried by one endof each of said bed frame end members engaging in and supported by saidguideways adapted to guide the movement of the inner edges of said bedframe when swung on said supporting links about said pivotal axisbetween a vertical position within said receptacle to a horizontalextended position, supporting legs pivoted at their upper ends to theends of the transverse end members of said bed frame remote from saidguide members, a pair of connecting links each having one end pivotallyconnected to each of said first named supporting links with the otherend pivotally connected to one of said legs, head and footboard membersmounted on the transverse ends of said bed frame, foldable membershingedly secured to said head and footboard members, and connectinglinks pivotally connecting said head and footboard foldable members andthe upper ends of said first named supporting links, whereby relativemovement of said supporting links and said bed frame eifects themovement of said head and footboard foldable members and said pivotallymounted legs from a collapsed to an extended position when said bedframe is swung from a vertical to a horizontal position.

4. A device as claimed in claim 3, in which said receptacle is providedwith a closure for said open front to conceal said bed frame when swungwithin said receptacle, said closure comprising a lower door panelsection extending longitudinally across said receptacle and hingedly connected adjacent to the bottom of said receptacle, an upper door panelsection extending longitudinally across said receptacle and beinghingedly connected to said lower panel section, guide means on saidreceptacle and means on the upper edge of said upper door panel sectionengageable in said guide means, said hinged connection between saidupper and lower panels being resiliently biased whereby said panels areself-supporting in the extended vertical position forming a closure forthe front of said receptacle.

5. In a foldaway bed construction as claimed in claim 3, retaining meansadapted to retain said head and footboard foldable members in extendedposition, said retaining means comprising, a pair of catch memberspivotally mounted on said receptacle one adjacent each end thereof,resilient means between each of said catches and said receptacle adaptedto normally maintain said catches in inoperative position, a lever armpivotally mounted adjacent each end of said receptacle and having oneend disposed in the path of said bed frame guideways, and connectinglinks between the other ends of said lever arms and said catches,whereby the final move ment of said bed frame from vertical tohorizontal position is adapted to move said bed frame guide means intocontact with said lever arms and said movement is transmitted throughthe last mentioned connecting links to move said catches into retainingcontact with said head and footboard foldable members.

6. A foldaway bed construction as claimed in claim 5, wherein each ofsaid retaining catches is formed so as to be of concave shape in generalcross-section, the lower arcuate portion of said concave shapeconstituting the bearing surface of said catch adapted to engage withsaid foldable head and. footboard members.

7. A foldaway bed construction comprising, a receptacle having an openfront, a bed frame having longitudinal side frame members connected bytransverse end frame members, guideways arranged adjacent each end ofsaid receptacle, guide members carried by each of said end bed framemembers slidably engaged in said guideways, said bed frame beingpivotally connected to said receptacle by a pair of supporting linkshaving their lower ends pivotally connected to said receptacle at thelower portion thereof and being pivotally connected adjacent their upperends to said transverse bed frame members, an upper door panel and alower door panel extending longitudinally across said receptacle openfront so as to constitute a folding closure, said upper door panel beinghingedly connected to said lower door panel with said lower door panelhingedly mounted on the base of said receptacle, guiding slots in saidreceptacle at opposite sides of said open front and guide means on saidupper door panel slidably engaged in said receptacle guiding slots, anddoor supporting means operatively connected with said bed frame endmembers adapted to engage and support said doors in an intermediateposition when said doors are lowered from a vertical position to ahorizontal position and to raise said doors to said intermediateposition from a horizontal folded position when said bed frame is swunaway from a horizontal position to a vertical position about saidsupporting links.

8. In a foldaway bed construction as claimed in claim 7, said doorsupporting means comprising a pair of supporting lever arms, one of saidarms being pivotally connected to each of said transverse end framemembers adjacent one of said guide members, each of said lever armshaving a first substantially straight portion extending from saidpivotal connection and an arcuate end portion adapted to engage with andsupport said closure door panels in folded position, and flexiblesupporting means between each of said supporting arms and one of saidbed frame end members adapted to support and ac tuate said supportinglever arms upon pivotal movement of said bed frame about said supportinglinks.

9. A foldaway bed construction as claimed in claim 8, including meansadapted to ensure the horizontal folding of said foldable door portionscomprising, a pair of elongated cam shaped lever members each pivotallyconnected inter- 1d mediate its length to one of said bed framesupporting links, each of said lever members having a first majorportion extending from said pivotal connection to a sliding engagementwith one of said bed frame guide members and a second minor portionextending in the other direction from said pivotal connection with theouter end disposed adjacent one of said door portions, said levermembers being adapted to operate in conjunction with said bed frame andsupporting links, whereby movement of said bed frame between thevertical and horizontal position, after said foldable door portions arein the intermediate closed position, actuates said second lever portionends into an arcuate path following the descent of said upper door paneland into engagement with said door panel if said descent is impeded.

10. A foldaway bed structure, comprising, a supporting frame, a pair ofspaced apart guiding tracks extending upwards and forwards from saidsupporting frame adjacent each end thereof, each of said guiding trackshaving an upper outer terminus and a lower inner terminus, a rectangularbed frame having longitudinal side frame members and transverse endframe members, each of said transverse end frame members carrying aguiding member adjacent one end slidably engaged with one of saidguiding tracks, a pair of elongated supporting links extending betweensaid transverse end bed frame members and said supporting frame, each ofsaid supporting links being pivotally connected adjacent one end to oneof said end bed frame members beyond the centre line of said member withrespect to said guiding member with the other end pivotally connected tosaid supporting frame adjacent the lower end of one of said guidingtracks, whereby the entire bed frame is adapted to be swung about saidsupporting links between a vertical position and a horizontal positionwith respect to said guiding frame with the guiding members guiding theinner edges of said bed frame between said upper outer termini and saidlower inner termini of said guiding tracks during said swingingmovement.

11. A bed structure according to claim 10, including a leg pivotallyconnected to the end of each transverse bed frame member remote fromsaid guiding member for movement between a folded position parallel tosaid bed end frame member and a standing position perpendicular to saidbed end frame member, a second pair of elongated connecting links eachhaving one end pivotally connected to one of said first named elongatedconnecting links with the other end pivotally connected to one of saidlegs, whereby said legs are adapted to be moved between said foldedposition and said standing position by said second connecting links whenthe bed frame is moved between said vertical and horizontal positions.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,100,757 Manz June 23, 1914 1,218,202 Murphy Mar. 6, 19171,366,521 Conhaim Jan. 25, 1921 1,622,702 Brown Mar. 29, 1927 2,547,863Godschalk Apr. 3,1951

